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Home My WebLink AboutNC0081931_LTR_20201022ROY COOPER Coverwr MICHAEL S. REGAN secretary S. DANIEL SMITH Director Mr. Paul Tran, South East Regional Manager Cube Yadkin Generation, LLC PO Box 575 Badin, NC 28009 Dear Mr. Tran: NORTH CAROLINA En viraninen tat Quality October 27, 2020 SUBJECT: Compliance Evaluation Inspection High Rock Powerhouse NPDES Permit NCO081931 Davidson County, NC On October 22, 2020, Roberto Scheller of this Office conducted a compliance inspection at the subject facility. This inspection was conducted as a Compliance Evaluation Inspection (CEI) to insure compliance with permit requirements and conditions. The subject facility appeared to be well operated and we wish to thank the operating staff for their assistance regarding this inspection. The enclosed report should be self-explanatory; however, should you have any questions, please do not hesitate to contact myself or Roberto Scheller at (704)235-2204 or roberto.scheller(a�ncdenr.gov. Sincerely, DocuSigned by: A14CC681AF27425... W. Corey Basinger, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ Enclosure: CEI Report No rth Caroiina Department of E nvuon menu! Quairty I Dimsoo of Water Resources ME Mooresville Regbfm! Office 1610 Es3 Center Avenue, Suite 301 I Mooresvlie, North Garoiina 25115 �L f •'— 7fA-6 3-168f} United States Environmental Protection Agency Form Approved. EPA Washington, D.C. 20460 OMB No. 2040-0057 Water Compliance Inspection Report Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type 1 IN 1 2 u 3 I NC0081931 I11 121 20/10/22 I17 18I � I 19 I s I 201 I 211IIIII 111111III II III III1 I I IIIII IIIIIIIII II r6 Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA ---------------------- Reserved ------------------- 67 I 72 I ni I 71 I 74 79 I I I I I I I80 701� I 711 L LJ L -1 I I Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include Entry Time/Date Permit Effective Date POTW name and NPDES Dermit Number) 10:OOAM 20/10/22 14/03/01 High Rock Powerhouse 3344 Bringle Ferry Rd Exit Time/Date Permit Expiration Date Denton NC 27239 10:50AM 20/10/22 19/01/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) Other Facility Data Jeffrey Todd Henley/ORC/704-422-5567/ Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Eli Hopson,2 Bethesda Metro Ctr Bethesda MD 20814//240-482-2714/ No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenar 0 Records/Reports Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date Roberto Scheller 'Docusignedby: DWR/MRO WQ/252-946-6481/ 10/26/2020 e- E 91C2A007838943E.- Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date W. Corey Basinger DWR/Division of Water Quality/704-235-2194/ EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. DocuSigned by: e� 10/27/2020 A14CC681AF27425... Page# NPDES yr/mo/day Inspection Type NCO081931 I11 12I 20/10/22 117 18 i c i (Cont.) Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) 12-month compliance history was reviewed from August 2019 through July 2020. No permit limit violations were reported during review period. Permit expired on January 31, 2019. A draft permit was sent out for review dated June 16, 2020. Permit is for the discharge of outfalls #001, #002 and #003 once through cooling water, outfall #004 stormwater and seeps from dam, outfall #005 oil/water separators. Records reviewed during inspection were well organized and maintained. At time of inspection fine diffused air was being added to tailwater, water being discharged from turbines, to help increase downstream DO. Page# Permit: NCO081931 Owner -Facility: High Rock Powerhouse Inspection Date: 10/22/2020 Inspection Type: Compliance Evaluation Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new 0 ❑ ❑ ❑ application? Is the facility as described in the permit? 0 ❑ ❑ ❑ # Are there any special conditions for the permit? 0 ❑ ❑ ❑ Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? M ❑ ❑ ❑ Comment: Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? 0 ❑ ❑ ❑ Is all required information readily available, complete and current? 0 ❑ ❑ ❑ Are all records maintained for 3 years (lab. reg. required 5 years)? 0 ❑ ❑ ❑ Are analytical results consistent with data reported on DMRs? 0 ❑ ❑ ❑ Is the chain -of -custody complete? 0 ❑ ❑ ❑ Dates, times and location of sampling Name of individual performing the sampling Results of analysis and calibration Dates of analysis Name of person performing analyses Transported COCs Are DMRs complete: do they include all permit parameters? ❑ ❑ ❑ Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operatc ❑ ❑ 0 ❑ on each shift? Is the ORC visitation log available and current? ❑ ❑ ❑ Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ ❑ Is the backup operator certified at one grade less or greater than the facility classification' ❑ ❑ ❑ ❑ Is a copy of the current NPDES permit available on site? 0 ❑ ❑ ❑ Facility has copy of previous year's Annual Report on file for review? ❑ ❑ 0 ❑ Comment: Laboratory Yes No NA NE Are field parameters performed by certified personnel or laboratory? 0 ❑ ❑ ❑ Are all other parameters(excluding field parameters) performed by a certified lab? M ❑ ❑ ❑ Page# 3 Permit: NCO081931 Inspection Date: 10/22/2020 Laboratory # Is the facility using a contract lab? Owner -Facility: High Rock Powerhouse Inspection Type: Compliance Evaluation # Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? Comment: Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ Yes No NA NE ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ ❑ ❑ ■ ❑ Comment: Outfalls #001, 002 and 003 flows are based on calculations of pipe diameter, volume and duration of discharge. Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: At time of insepction no oil sheens were observed at any of the discharge points. Page# 4